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Finding the Fourth Proportional to 103,641.54, 154,654.01 and 92,471.46

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Solution

The fourth proportional to 103,641.54, 154,654.01 and 92,471.46 is: 137,986.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,641.54 : 154,654.01 = 92,471.46 : x
  2. Step 2: Convert to fraction form
    103,641.54/154,654.01 = 92,471.46/x
  3. Step 3: Cross multiply
    103,641.54x = 154,654.01 × 92,471.46
  4. Step 4: Simplify right side
    103,641.54x = 14,301,081,637.20
  5. Step 5: Solve for x
    x = 14,301,081,637.20/103,641.54
  6. Step 6: Final answer
    x = 137,986.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.